Finding the Fourth Proportional to 430,584.44, 645,286.16 and 272,530.76
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Solution
The fourth proportional to 430,584.44, 645,286.16 and 272,530.76 is: 408,422.39
Step by Step Solution
- Step 1: Write the proportion equation
430,584.44 : 645,286.16 = 272,530.76 : x - Step 2: Convert to fraction form
430,584.44/645,286.16 = 272,530.76/x - Step 3: Cross multiply
430,584.44x = 645,286.16 × 272,530.76 - Step 4: Simplify right side
430,584.44x = 175,860,325,057.18 - Step 5: Solve for x
x = 175,860,325,057.18/430,584.44 - Step 6: Final answer
x = 408,422.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.